quantities-and-units electronics question and answers -Page 3

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Quantities and Units problems

1. Voltage, not current, determines the severity of an electrical shock.
Options
A. True
B. False

Correct Answer: False

2. Multiplying 5 � 10⁶ by 4 � 10³ results in 20 � 10¹⁸.
Options
A. True
B. False

Correct Answer: False

3. 0.00015 V can be expressed in powers of ten as 1.5 � 10^?4 V.
Options
A. True
B. False

Correct Answer: True

4. Precision refers to the difference between the measured value and the accepted value.
Options
A. True
B. False

Correct Answer: False

5. 4200 W is the same as 4.2 kW.
Options
A. True
B. False

Correct Answer: True

6. The metric prefix giga is used to represent one billion.
Options
A. True
B. False

Correct Answer: True

7. The number 560,000 is expressed in scientific notation.
Options
A. True
B. False

Correct Answer: False

8. The number 24.5, rounded to two significant digits, is 25.
Options
A. True
B. False

Correct Answer: False

9. The joule is the unit for ___.
Options
A. energy
B. charge
C. time
D. frequency

Correct Answer: energy

10. 106,100,000 Hz is the same as ___ MHz.
Options
A. 106.1
B. 1,061
C. 10,610
D. 106,100

Correct Answer: 106.1

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